"Human reviewers remain essential to both removing content and training machine learning systems because human judgment is critical to making contextualized decisions on content," YouTube CEO Susan Wojcicki said in the blog post.

Common Sense Media CEO James Steyer said recently that hiring more people will help fix the problem, according to CBS News.

"At the end of the day, large tech companies are run by the bottom line, and I think YouTube has been an incredibly successful platform for Google, and they have simply not paid enough attention to some of the bad stuff that happens on that platform," he said.

“We applaud Google’s decision to increase monitoring of violent and extreme content — both the videos and comments — on YouTube. This is a great first step towards not only protecting advertisers, but also protecting the health and safety of young viewers who may be watching. Our past research on YouTube found that children entering ‘child-friendly’ search terms were confronted with highly offensive content in the text commentary posted by other site users. YouTube continues to be a site that needs constant monitoring, and today’s announcement should assist with that goal,” Winter said.

But there’s another set of videos on YouTube that is still a “trouble spot,” according to USA Today. Called “YouTube Poop,” the genre of videos include popular cartoons and characters and adds a soundtrack of explicit material over it.

Though some of the videos are unavailable to young people because of age restrictions, others — like a rip-off of “Let It Go” from “Frozen” that talks about crude sexual acts — are easily viewable for children. That “Frozen” video has nearly 2 million views.

USA Today identified these videos to YouTube, which later made them age-restricted and were taken down.

YouTube continues to monitor these videos, saying it will take down any mature videos that are flagged as inappropriate.

Corrine O'Neill, a producer of children's cartoons for her WildCanadaKids YouTube channel, told USA Today that children’s videos will always rise to the top. It’s important for YouTube not to promote these explicit videos, she said.

"The YouTube algorithm is a chum factory," she said. "It rewards quantity over quality. It's YouTube promoting these videos that brought them to people."

Advertisers, like Adidas and Hewlett-Packard, left YouTube amid the backlash over child content. All year, reports said that YouTube videos tried to lure children into them with pictures of popular cartoons, only to reveal dark and disturbing content, the Deseret News reported.

YouTube currently receives 400 hours of video every minute, according to USA Today. Experts said its current method of review, which relies on artificial intelligence, doesn’t work well enough to catch all of these videos.